GeForce RTX 2080 vs GeForce RTX 3080

Intro

Compare that to the GeForce RTX 3080, which comes with GPU core speed of 1440 MHz, and 10240 MB of GDDR6X RAM set to run at 1188 MHz through a 320-bit bus. It also is comprised of 8704 SPUs, 272 TAUs, and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080		215 Watts
GeForce RTX 3080		320 Watts
	Difference: 105 Watts (49%)

Memory Bandwidth

In theory, the GeForce RTX 3080 should be 70% quicker than the GeForce RTX 2080 overall, due to its higher bandwidth. (explain)

GeForce RTX 3080		778547 MB/sec
GeForce RTX 2080		458752 MB/sec
	Difference: 319795 (70%)

Texel Rate

The GeForce RTX 3080 will be a lot (approximately 41%) more effective at anisotropic filtering than the GeForce RTX 2080. (explain)

GeForce RTX 3080		391680 Mtexels/sec
GeForce RTX 2080		278760 Mtexels/sec
	Difference: 112920 (41%)

Pixel Rate

The GeForce RTX 3080 is much (more or less 43%) faster with regards to FSAA than the GeForce RTX 2080, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce RTX 3080		138240 Mpixels/sec
GeForce RTX 2080		96960 Mpixels/sec
	Difference: 41280 (43%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.